Development of a Three dimensional Skill-Analyzing System by means of "360 Degree Turning of a Motion Model" and Completion of a New Teaching Method Based upon It.

所有的身体运动，包括物理运动，都可以用三维坐标表示。最近个人计算机的显著发展使更精确的图形和计算速度的提高成为可能，这使得在显示器上绘制更复杂的三维图形成为可能。因此，为了使实验数据的收集更容易，分析更精确，我们尝试开发一种新的技能分析系统，引入了“单点透视变换”和“360度旋转运动模型”。由于电子设备的发展，三维分析已经从棍棒图像发展到曲面模型，这对田径领域的三维分析做出了很大的贡献。这项研究的独创性在于，运动模型可以360度旋转，也可以从任何方向旋转，这种观察方式已经被证明是有用的，特别是在运动中，运动的美感和有效的运动被认为是重要的。运动可分为两种模式；移动：从一个地方到另一个地方的移动，在现场或小范围内的移动以前者的“滑雪”和后者的“高尔夫”为例，对收集到的数据进行分析，在该系统下进行实验，该系统的应用取得了一定的成功。

All the bodily motions, including physical motion, can be put into the three dimensional coordinates. Recent remarkable development of personal computers enabled more precise graphics and improvement of computing speed, which has made it possible to draw up more complicated 3D graphics on the display.That is why we authors, intending to make the gathering of experimental data easier and the analyzes more precise, tried to develop a new skill-analyzing system with the introduction of 'the single point perspective transformation' and ' 360 degree turning ofa motion model'. Thanks to the development of electronic equipment, 3D analyzes have now evolved form stick picture into surface models, which greatly contributed to the 3D analysis in the field of Athletics.The originality of this research consists in that a motion model can be turned around 360 degrees and its from any direction, and this way of observation has turned out to be use, especially in sports in which the beauty of from and effective movements are considered important. Motion can be classified into two patterns ; the movement from one place to another and that on the spot or in a small area. Picking up 'skiing' from the former and 'golf' from the latter as a model case, we experimented under this system with analyzing the data we gathered, and dould obtain a fair success as to the application of this system.